Inconel 800 / 800H / 800HT - Complete Material Specifications & Properties
The Inconel 800 series comprises nickel–iron–chromium alloys engineered for high-temperature service. They offer excellent oxidation resistance and good creep strength. While standard Inconel 800 provides balanced mechanical properties for general high-temperature applications, the 800H variant features a slightly higher carbon content for enhanced high-temperature strength and creep resistance. The 800HT is solution heat treated to improve ductility and uniformity without compromising thermal stability.
Abhinav Overseas is a leading supplier and stockist of premium Inconel 800 series alloys throughout India. Our technical expertise ensures all products meet the most stringent industry standards and performance requirements.
We supply these high-performance alloys in various forms including sheets, plates, pipes, tubes, bars, and custom fabricated components to meet specific industry requirements. Each product undergoes rigorous quality testing to ensure compliance with international standards.
Our Inconel 800 series materials are widely used in applications requiring exceptional heat resistance and oxidation stability, particularly in power generation, petrochemical processing, and industrial heating systems.
With our extensive inventory and dedication to quality, Abhinav Overseas provides reliable Inconel 800 series solutions with competitive pricing and efficient delivery schedules.
Key Features
- High-temperature oxidation resistance
- Good creep strength for prolonged thermal service
- Versatile performance across a range of high-temperature industrial applications
Chemical Composition
| Element | Composition |
|---|---|
| nickel | 29-35% |
| chromium | 19.5-21.5% |
| iron | Balance |
| manganese | ≤1% |
| silicon | ≤1.0% |
| phosphorus | ≤0.04% |
| sulfur | ≤0.03% |
Material Variants
800 Stainless Steel
Carbon Content: ≤0.10%
Mechanical Properties
- tensile Strength:≈620 MPa
- yield Strength:≈280 MPa
- elongation:≈30%
- hardness:Approx. HRB 95
Key Features
- Balanced mechanical properties for standard high-temperature service
- Excellent oxidation resistance
- Good creep strength under moderate high-temperature conditions
Common Applications
- Heat exchangers
- Furnace components
- Chemical processing equipment
- Pressure vessels in elevated temperature environments
Standards
800H Stainless Steel
Carbon Content: ≈0.10-0.15%
Mechanical Properties
- tensile Strength:≈640 MPa
- yield Strength:≈300 MPa
- elongation:≈25-30%
- hardness:Approx. HRB 95
Key Features
- Enhanced high-temperature strength and creep resistance due to higher carbon content
- Optimized for prolonged exposure to elevated temperatures
- Improved thermal stability in severe service conditions
Common Applications
- Furnace parts
- High-temperature pressure vessels
- Industrial process equipment requiring enhanced creep resistance
Standards
800HT Stainless Steel
Carbon Content: Similar to standard 800 (low carbon content optimized for heat treatment)
Mechanical Properties
- tensile Strength:≈630 MPa
- yield Strength:≈285 MPa
- elongation:≈30-35%
- hardness:Approx. HRB 90-95
Key Features
- Solution heat treated for improved ductility and uniformity
- Optimized for applications requiring a balance between high strength and enhanced mechanical consistency
- Maintains excellent oxidation resistance at high temperatures
Common Applications
- Heat exchangers
- Furnace tubing and components
- Pressure vessels in high-temperature environments
- Industrial components benefiting from solution annealing
Standards
Products Available in Inconel 800 / 800H / 800HT
Products
Main Categories
Material Types
- Stainless Steel
- Inconel
- Incoloy
- Hastelloy
- Nickel Alloy
- Monel
- Titanium
- Cupro Nickel
Nickel Alloys
Standard nickel-based alloy compositions
| Material type | Ni | Cr | Co | Mo | W | Fe | Al | Ti | Cu | Nb | Other |
|---|---|---|---|---|---|---|---|---|---|---|---|
| - | - | - | - | - | - | - | - | - | - | - | - |
| Hastelloy A | 57.00 | 1.0* | - | 21.00 | - | 19.00 | - | - | - | - | - |
| Hastelloy B | 62.00 | 1.0* | 2.5* | 28.00 | - | 5.50 | - | - | - | - | 0.4% V |
| Hastelloy D | 85.00 | 1.0* | - | - | - | 1.0* | - | - | 4.0* | - | 9% Si |
| Hastelloy F | 45.00 | 22.00 | 2.5* | 6.00 | 1.0* | 18.00 | - | - | - | 2.00 | - |
| Hastelloy G | 44.00 | 22.00 | - | 6.50 | 1.0* | 20.00 | - | - | 2.00 | 2.00 | - |
| Hastelloy N | 72.00 | 7.00 | 0.20 | 16.50 | 0.50 | 5.0* | 0.25 | 0.25 | - | - | 0.01% B |
| Hastelloy R | 66.00 | 15.50 | 1.5* | 5.00 | - | 7.0* | 2.20 | 2.50 | - | - | - |
| Hastelloy S | 68.00 | 15.50 | - | 14.50 | - | 1.00 | - | - | - | - | 0.5%Mn 0.4% Si |
| Hastelloy W | 63.00 | 5.00 | 2.5* | 24.50 | - | 5.50 | - | - | - | - | 0.6% V |
| Hastelloy X | 47.00 | 22.00 | 1.50 | 9.00 | 0.60 | 18.50 | - | - | - | - | - |
| Hastelloy C276 | 56.00 | 16.00 | 2.5* | 17.00 | 4.00 | 5.50 | 0.4* | - | - | - | 0.35% V |
| Hastelloy C22 | 54.00 | 21.00 | 2.5* | 14.00 | 3.00 | 5.0* | 0.4* | - | - | - | 0.35% v |
| Hastelloy C4 | 54.00 | 16.00 | 1.25* | 16.00 | - | 2.0* | 0.4* | 0.5* | - | - | - |
| Inconel 600 | 75.50 | 15.50 | - | - | - | 7.00 | - | - | - | - | - |
| Inconel 601 | 60.50 | 23.00 | - | - | - | 14.10 | 1.35 | - | - | - | - |
| Inconel 702 | 79.00 | 15.60 | - | - | - | 0.40 | 3.40 | 0.70 | - | - | - |
| Inconel 713C | 72.00 | 13.40 | - | 4.50 | - | 1.5* | 6.20 | 1.0* | - | 2.30 | - |
| Inconel 718 | 53.00 | 18.50 | - | 3.00 | - | 18.00 | - | 0.80 | - | 5.00 | - |
| Inconel 800 | 32.00 | 20.00 | - | - | - | 47.00 | - | - | - | - | - |
| Inconel 825 | 40.00 | 21.00 | - | 3.00 | - | 32.00 | - | 1.00 | 2.00 | - | - |
| Inconel 901 | 42.00 | 12.50 | 1.0* | 5.70 | - | 35.00 | 0.35* | 2.90 | - | - | - |
| Inconel 792 | 61.00 | 12.50 | 9.00 | 2.00 | 3.90 | - | 3.20 | 4.20 | - | - | 4.2% Ta/ 1% Hf |
| Inconel 738 | 61.00 | 16.00 | 8.50 | 1.75 | 2.60 | 0.50 | 3.40 | 3.40 | - | 0.90 | 1.75% Ta |
| Inconel 939 | 48.00 | 22.40 | 19.00 | - | 2.00 | - | 1.90 | 3.70 | - | 1.00 | 1.4% Ta |
| GMR 235 | 63.00 | 15.50 | - | 3.20 | - | 10.00 | 3.70 | 2.00 | - | - | 0.06% B |
| Nimonic 75 | 77.00 | 20.00 | - | - | - | 5.0* | 0.15 | 0.40 | - | - | - |
| Nimonic 80 | 74.00 | 20.00 | 2.0* | - | - | 1.5* | 1.30 | 2.20 | - | - | - |
| Nimonic 81 | 65.00 | 30.00 | - | - | - | 1.0* | 1.00 | 1.75 | - | - | - |
| Nimonic 90 | 57.00 | 20.00 | 16.00 | - | - | 5.0* | 1.50 | 2.50 | - | - | - |
| Nimonic 91 | 47.50 | 28.50 | 20.00 | - | - | - | 1.20 | 2.30 | - | - | - |
| Nimonic 105 | 53.00 | 15.00 | 20.00 | 5.00 | - | 1.0* | 4.70 | 1.20 | - | - | - |
| Nimonic 115 | 57.00 | 15.00 | 15.00 | 3.50 | - | 1.0* | 5.00 | 4.00 | - | - | - |
| Nimonic C263 | 50.00 | 20.00 | 20.00 | 5.90 | - | 0.75* | 0.50 | 2.20 | - | - | - |
| Nimonic C1023 | 56.00 | 15.50 | 9.50 | 8.00 | - | 0.25 | 4.30 | 3.60 | - | - | - |
| GTD 111 | 59.00 | 14.00 | 9.50 | 1.50 | 3.80 | 0.5* | 3.00 | 4.90 | - | - | 2.8% Ta/ 0.02*% B |
| GTD 222 | 50.00 | 22.50 | 19.00 | - | 2.00 | 0.25* | 1.20 | 2.30 | - | 0.80 | 1.0% Ta |
| Rene 41 | 52.00 | 19.00 | 11.00 | 10.00 | - | 5.0* | 1.60 | 3.20 | - | - | - |
| Rene 77 (Udimet 700) | 52.00 | 15.00 | 15.00 | 4.00 | - | 0.5* | 4.20 | 3.50 | - | - | 0.02*% B |
| Rene 80 | 60.00 | 14.00 | 9.50 | 4.00 | 4.00 | - | 3.00 | 5.00 | - | - | - |
| Rene 88 | 55.00 | 16.00 | 13.00 | 4.00 | 4.00 | 0.25 | 2.10 | 3.75 | - | 0.70 | 0.02% B |
| Rene 125 | 59.00 | 9.00 | 10.00 | 2.00 | - | - | 4.80 | 2.60 | - | - | 3.8% Ta/ 1.6% Hf / 7% W |
| Waspalloy | 56.00 | 19.00 | 14.00 | 4.20 | - | 1.5* | 1.40 | 3.00 | - | - | 0.1% Zr |
| Udimet 500 | 53.00 | 17.50 | 16.50 | 4.00 | - | 4.00 | 2.90 | 3.90 | - | - | 0.01 B |
| Udimet 520 | 56.00 | 19.00 | 12.00 | 6.00 | 1.00 | 1.00 | 2.00 | 3.00 | - | - | - |
| Udimet 600 | 52.00 | 17.50 | 16.50 | 4.00 | - | 4.0* | 4.20 | 2.90 | - | - | 0.04*% B |
| Mar M 246 | 600.00 | 9.00 | 10.00 | 2.50 | 10.00 | 0.15 | 5.50 | 1.50 | - | - | 1.5% Ta |
| PWA 663 (B1900) | 64.00 | 8.00 | 10.00 | 6.00 | - | - | 6.00 | 1.00 | - | - | 1% Zr/ 4% Ta |
| Mar M 200 | 60.00 | 9.00 | 10.00 | - | 12.00 | - | 5.00 | 2.00 | - | 1.00 | 0.12% B |
| Mar M 002 | 59.00 | 10.00 | 10.00 | - | 10.00 | 1.0* | 5.00 | 1.50 | - | - | 2.5% Ta / 1.5% Hf |
| Mar M 247 | 58.00 | 8.50 | 10.00 | 0.60 | 10.00 | 0.5* | 5.50 | 1.00 | - | - | 3% Ta |
| Alloy 230 | 57.5 | 22.00 | - | 2.00 | 14.00 | 3 | 0.30 | - | - | - | 0.1% C/0.5% Mn/0.4% Si |
| Kovar | 29 | - | 17 | - | 54 | - | - | - | - | - | - |
| N155 (Multimet) | 20 | 21 | 20 | 3 | 2.5 | 30.35 | - | - | - | - | 0.5% C/ Ta 1%/ Si 0.5% |
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